I finally traced a phantom CAS fault to a chafed wire behind the FO panel

Spent most of Tuesday chasing an intermittent air data fault on a Citation at our hangar in Wichita. The CAS message would pop once on climb out and then vanish for days, so no help from the codes. Pulled the FO side panel and ran a wiggle test on the harness bundle going to the ADIRU. Found one wire with the jacket rubbed through right where a clamp was over tightened, and it was shorting on the frame. Anyone got a better trick for finding these rub spots without pulling half the panel?

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